A series that follows the adventures of Muelín, a daring apprentice explorer, who travels around the world with the retired explorer Don Juico, his loyal dog Colmillo, and his best friend Perlita, a small and absent-minded baby tooth.
Together they experience exciting adventures, encounter a tribe of saber-toothed teeth, explore ancient catacombs, and manage to photograph the great white molar, Muela Dick.